26
1 Embedded Antenna for Handheld/P ortable Devices (Support Blueto oth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150 Tel: 703-913-5552 Fax: 703-913-5553 URL: www.nearson.com Email: [email protected] Increase Your Wireless Connection Efficiency

1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150

Embed Size (px)

Citation preview

Page 1: 1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150

1

Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11)

NEARSON Inc.

7432 Alban Station Blvd., Suite B226

Springfield, VA 22150

Tel: 703-913-5552

Fax: 703-913-5553

URL: www.nearson.com

Email: [email protected]

Increase Your Wireless Connection Efficiency

Page 2: 1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150

2

Embedded Inside Story

• Customization to Customer Specific Requirements;

• Optimal Performance at Reduced Cost;• Built-in Flexibility for Future Design

Changes;• State of the Art Design and Production

Capabilities

NEARSON Increase Your Wireless Connection Efficiency

Page 3: 1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150

3

Why Embedded ?

• Size• Cost• Security• Cosmetic/Aesthetic• Technology Advantages

NEARSON Increase Your Wireless Connection Efficiency

Page 4: 1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150

4

Embedded Antenna Applications

• PAMCIA Card for Wireless Modem• Wireless LAN• Bluetooth• Palm Computer(PDA) Technology• Bar Code Scanner• Point of Sale RFID

NEARSON Increase Your Wireless Connection Efficiency

Page 5: 1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150

5

Embedded Antenna

• Basic Guidelines

• Tuning

• Impedance Matching

• VSWR

• Gain and Orientation

NEARSON

Design Parameters

Increase Your Wireless Connection Efficiency

Page 6: 1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150

6

Antenna Design Parameters

• Antennas must be tuned to correct

operating frequency band

• Bluetooth and 802.11 operate at 2.4GHz ~ 2.5GHz , ISM band

NEARSON Increase Your Wireless Connection Efficiency

Tuning

Page 7: 1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150

7

Antenna Design Parameters

• 50 input impedance of antenna matches to 50 output impedance of RF module

• If impedance mismatching, a reflected voltage cause instability of RF module and poor power transfer from RF module

NEARSON Increase Your Wireless Connection Efficiency

Impedance Matching

Page 8: 1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150

8

Antenna Design Parameters

• Return Loss is a measurement of reflection General specification is VSWR 2.0

• power

• When VSWR = 2 Return Loss = -10dB, General specification of return loss is -10dB

• Voltage Standing Wave Ratio (VSWR) is a ratio of the max. and min. voltage, which is the combination of inserting and reflecting voltage wave

NEARSON

VSWR

Increase Your Wireless Connection Efficiency

Page 9: 1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150

9

Antenna Design Parameters

NEARSON Increase Your Wireless Connection Efficiency

VSWR & Return Loss Plot

Page 10: 1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150

10

Antenna Design Parameters

• Use Network Analyzer Agilent 8753ES 300k to 6GHz

NEARSON

VSWR & Return Loss Measurement

Increase Your Wireless Connection Efficiency

Page 11: 1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150

11

VSWR And Radiation Pattern

• R/S ZVC 300kHz ~ 8GHz Network Analyzer• Agilent 8753D Network Analyzer

NEARSON Increase Your Wireless Connection Efficiency

Testing Equipment

Page 12: 1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150

12

Antenna Design Parameters

• Gain is the ability of radiating and receiving of antenna

• Maximize gain– Minimize losses in feed line– Use good electrically materials such as

• Good conductor• Low loss polymers

– Minimize impedance mismatch losses• Well VSWR or return loss

• By radiation pattern measurement to find out real gain value and orientation of antenna

NEARSON Increase Your Wireless Connection Efficiency

Gain and Orientation

Page 13: 1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150

13

Antenna Design Parameters

• Anechoic Chamber– 3D 4 9 4(m3) room with shielded and absorber

– pattern

– 750-8GHz

NEARSON

Gain and Orientation Measurement

Increase Your Wireless Connection Efficiency

Page 14: 1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150

14

Radiation Pattern Testing Equipment

• Horn Antenna : DRH-0118

NEARSON Increase Your Wireless Connection Efficiency

Page 15: 1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150

15

Embedded Antenna

• Omni Function When Open or Close

• Built Inside of Casing; No Extra Portion out of Body

• Smaller Size to Fit Limited Space

• Consider Al-Mg Casing Application

NEARSON Increase Your Wireless Connection Efficiency

Design Requirements

Page 16: 1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150

16

802.11 & Bluetooth Antenna

• Keep Free Space Surround Antenna to Derive Omni Function When LCD Open or Close

• To Get Smaller Size with Different Design or Change Substrate Material Like Ceramic

• Keep Antenna out of Al-Mg Casing

NEARSON Increase Your Wireless Connection Efficiency

Solution to Customer Requirement

Page 17: 1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150

17

Antenna Placement and Function

1. Bluetooth2. Wireless Lan 802.11

802.11 mini pci module usually has 2 RF input and bluetooth has 1

NEARSON Increase Your Wireless Connection Efficiency

Page 18: 1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150

18

802.11 & Bluetooth Antenna

天線位置圖

NEARSON Increase Your Wireless Connection Efficiency

Target Position

Page 19: 1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150

19

-10

-5

0

907560

4530150345330

315300285

270255240

225210195180165150135120105

802.11 & Bluetooth Antenna

Open HOpen E

Close E Close H

NEARSON Increase Your Wireless Connection Efficiency

Test Function

Page 20: 1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150

20

802.11 & Bluetooth Antenna

AntennaTransmit coax cable

Coax Connector

Antenna Coax cable Coax connector

TypeGain(dBi)

Max. ref.

Diameter

(Φmm)Attenuation(dB/m)2.5G

Brand

or typeP/N Size ref.

Air dipole 2.5 0.85 5.8Hirose

Murata

UFL-LP-040

MXTK92----

5x3x2.5mm

5x2.8x2.0mm

PCB dipole 2 1.13 3.3 MMCX RMCX-- 10x6x5mm

PCB μ-strip 1.6 1.32 2.4 Hirose U.FL-LP-066 5x3x2.5mm

PCB μ-strip 1.8 1.32 2.4 Hirose U.FL-LP-066 5x3x2.5mm

PCB μ-strip 2.1 1.32 2.4 Hirose U.FL-LP-066 5x3x2.5mm

PCB μ-strip 1.5 1.32 2.4 Hirose U.FL-LP-066 5x3x2.5mm

PCB μ-strip 1.3 1.32 2.4 Hirose U.FL-LP-066 5x3x2.5mm

PIFA 2.3 1.32 2.4 Hirose U.FL-LP-066 5x3x2.5mm

Assembly Analysis

Page 21: 1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150

21

802.11 & Bluetooth Antenna

Customer inquiry

RD project team

Antenna type decide

Antenna mock up

Antenna SWR return loss ckeck

Antenna pattern test

Objective pattern test

Antenna Spec. finalize

Antenna sample submit

NEARSON Increase Your Wireless Connection Efficiency

Design Route

Page 22: 1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150

22

802.11 & Bluetooth Antenna

RD project team

Mass production meeting

Standard operation procedure set up

Working instruction set up

Antenna pilot run

Antenna Mass prod.

Antenna SWR & return loss FQA 100% test

Antenna shipment

Production equipment set up

NEARSON Increase Your Wireless Connection Efficiency

Production Route

Page 23: 1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150

23

Mass Production Process Testing Equipment

• Semi-automatic Stripper : Schleuniger MP 257

• Automatic Stripper : Schleuniger PS9500/RS

• Accurate Coaxial Cable Cover Strip

NEARSON Increase Your Wireless Connection Efficiency

Page 24: 1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150

24

Mass Production Process Testing Equipment

• Agilent 8714 Network Analyzer

• Testing and Qualify Each Antenna’s VSWR

NEARSON Increase Your Wireless Connection Efficiency

Page 25: 1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150

25

802.11 & Bluetooth Antenna

RD project team

QC project meeting

Antenna QC flow chart

Antenna component IQC

Antenna SWR return loss IPQC check

Antenna dimension check

Antenna production improvement

Antenna defect analysis

Antenna shipment with QA report

NEARSON Increase Your Wireless Connection Efficiency

Quality Assurance Route

Page 26: 1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150

26

NEARSONNEARSON design teams utilized state of the art design teams utilized state of the art computer simulation technology to speed up the computer simulation technology to speed up the development cycle thus reducing production-development cycle thus reducing production-manufacturing turn around time. Our engineers manufacturing turn around time. Our engineers work closely with our customers in all aspects of work closely with our customers in all aspects of design, implementation, and production of our design, implementation, and production of our customers embedded antenna solutions.customers embedded antenna solutions.

NEARSON Increase Your Wireless Connection Efficiency